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What happens when you touch a cold halogen light bulb with clean fingers?
Wiki User
∙ 14y ago
Speaking from experience working with theatre lighting, it may shorten the life of the bulb or even cause immediate failure, even if your hands are relatively clean after freshly washing with soap. Usually, touching a cold halogen bulb--where even the smallest amount of oil from your skin is left on the bulb--can often cause the bulb to overheat when lit and then quickly burn out, or else it may shorten the life. Halogen bulbs burn much hotter than conventional incandescent bulbs, so the heat must be allowed to escape as designed. (ever felt the heat over a torchiere floor lamp, or seen it fry inscects?) Oil prevents the thin layer of glass from allowing heat to escape properly, so it can be affected by even the slightest amount of oil.
Thus, if you touch a cold halogen bulb with your fingers, be sure to clean it gently & throughly with rubbing alcohol and a clean cloth before use.
Wiki User
∙ 14y ago
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Reach underneath to get behind it. You then unplug the light (and holder) to reveal lamp. Similiar to the new halogen headlights where you replace just the bulb instead of the entire casing. It's really a pain to reach it. BE CAREFUL to not touch the glass part of the new bulb. Most are halogen and will burn out prematurely if grease or even oil from your fingers are left on it.
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